Add styling for description lists

Change-Id: I5545fdb0d48972d5493b0370553078fb18cfce86
diff --git a/inst/reveal.js-5.2.1/css/theme/source/ids.scss b/inst/reveal.js-5.2.1/css/theme/source/ids.scss
index 495ab63..a7d5861 100644
--- a/inst/reveal.js-5.2.1/css/theme/source/ids.scss
+++ b/inst/reveal.js-5.2.1/css/theme/source/ids.scss
@@ -366,6 +366,22 @@
   font-size: 0.8em;
 }
 
+// Description lists: dt in orange Fira Sans Condensed, dd indented.
+.reveal dl {
+  font-size: 0.62em;
+  line-height: 1.25;
+}
+.reveal dt {
+  font-weight: 700;
+  margin-top: 0.35em;
+  font-family: "Fira Sans Condensed", sans-serif;
+  color: $idsOrange;
+}
+.reveal dd {
+  margin: 0 0 0 1.2em;
+  color: #444;
+}
+
 
 /*********************************************
  * FOOTER